%0 Journal Article %A Juha Pohjanpelto %A Stephen C. Anco %T Generalized Symmetries of Massless Free Fields on Minkowski Space %J Symmetry, integrability and geometry: methods and applications %D 2008 %V 4 %U http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a3/ %G en %F SIGMA_2008_4_a3